\documentclass{article}

\begin{document}
% Top Matter
\title{How to Structure a \LaTeX{} Document}
\author{Andrew Roberts\\
		School of Computing,\\
		Leeds,\\
		United Kingdom,\\
		LS2 1HE\\
		\texttt{andyr@comp.leeds.ac.uk}}
\date{\today}
\maketitle

\begin{abstract}
The abstract goes here...
\end{abstract}

% main section
Main section...

\end{document}
